Craftsman Riding Mower Won't Start?

I've got a Craftsman 14.5 HP electric start 42 in. 6 speed lawn tractor that won't turn over. I removed the deck and all PTO handles/levers when I parked it 8 years ago.

I want to get the mower up and running again and eventually start converting it to a racing mower, where should I begin? I've tried jumping it to no avail, I can't even get a clicking noise to come out of it.

By Beechy B.